CN103216671B - Seal valve gum cover for direct-acting valve - Google Patents
Seal valve gum cover for direct-acting valve Download PDFInfo
- Publication number
- CN103216671B CN103216671B CN201310154589.6A CN201310154589A CN103216671B CN 103216671 B CN103216671 B CN 103216671B CN 201310154589 A CN201310154589 A CN 201310154589A CN 103216671 B CN103216671 B CN 103216671B
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- Prior art keywords
- gum cover
- valve
- direct
- seal valve
- seal
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- 229920001971 elastomer Polymers 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004677 Nylon Substances 0.000 claims abstract description 5
- 229920001778 nylon Polymers 0.000 claims abstract description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 4
- 210000003205 muscle Anatomy 0.000 claims description 11
- 229920004933 Terylene® Polymers 0.000 claims description 4
- 239000002657 fibrous material Substances 0.000 abstract description 2
- 229920004934 Dacron® Polymers 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 210000004907 gland Anatomy 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000005987 sulfurization reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The invention relates to a seal valve gum cover for a direct-acting valve. The seal valve gum cover for the direct-acting valve comprises a gum cover body which is in a pyramidal shape. A net-shaped inner rib is lined inside the gum cover body. The gum cover body is made of rubber materials. The inner rib is made of fiber materials such as dacron and nylon or rigid metal wires. Transverse ribs of the net-shaped inner rib have flexibility and are arranged among longitudinal ribs in a staggered mode. A layer of the net-shaped inner rib is lined on a film face of the seal valve gum cover, the transverse ribs of the net-shaped inner rib can be flexible in a limited mode, the longitudinal ribs of the net-shaped inner rib can not be flexible, the longitudinal tension force of the seal valve gum cover is increased, longitudinal mechanical tension force intensity is improved, the longitudinal bearing pressure of the seal valve gum cover in the direct-acting valve is increased greatly, and at the same time, the transverse ribs of the seal valve gum cover can be flexible in the free limited mode. The pyramidal seal valve gun cover can reduce an annular interval face between a protrusive loop and a valve rod, and accordingly the bearing pressure of the annular interval face can be reduced. Not only is corresponding tightness on the edge of periphery surface of a valve opening of the valve rod ensured, but also convenience in production and assembly can be ensured.
Description
Technical field
The present invention relates to the valve in a kind of fluid pipeline, be specifically related to a kind of for the parts in direct-acting type valve (or claiming rubber-sleeve type valve).
Background technique
Existing valve, its spool is all limited by the impact of hydraulic pressure or air pressure, water or atmospheric pressure larger, the pressure of the water that spool bears or gas is also larger, thus make spool open or close resistance also can correspondingly increase.Therefore applied force amount also can be very large when opening or close.This just causes the wearing and tearing of spool aggravate and cause leakage, and working life shortens.
Chinese patent CN1012696736A, disclose a kind of valve, comprise valve body, valve rod, inlet opening and delivery outlet, described valve rod is hollow article, cloth through hole on valve rod, establishes stuffing box gland between valve rod and upper limit ring, along being fixed on valve rod on stuffing box gland, along being fixed on inwall on valve body under stuffing box gland, upper limit ring is connected to valve body top; Establish valve pocket between valve rod and lower limit ring, along being fixed on valve rod on valve pocket, along being fixed on inwall under valve body under valve pocket, lower limit ring is connected to valve body lower portion; Form cavity between stuffing box gland with valve pocket to be connected with described inlet opening.Product made by the technological scheme of this patent in actual applications, unusual anti-wear feature and preeminent sealability are shown, especially in the integrated application of solar water heater low pressure water control valve, there is very high work manipulation sensitivity and good stability, tubular valve gum cover wherein also possesses appliance for releasing single swabbing dirt function simultaneously, has shown remarkable effect and characteristic in low voltage control valve.But for the application in the control of high-pressure fluid medium valve and Super high pressure valve, but seem unable to do what one wishes, be difficult to be competent at.This main or sealed member rubber tubular valve pocket and stuffing box gland high pressure strength is little, although improving rubber hardness also can limited increase mechanical strength, and the internal diameter as far as possible by reducing limited ring reduces the unidirectional gap bearing area of rubber seal and obtains weakening rubber seal bearing capacity object, but it is generally only applicable to use in the lower scope of fluid medium pressure, in actual applications, under the impact of or water hammer pressure large at running water pressure fluctuation, rubber packing material local gap face easily expand become book even burst, longitudinal bearing capacity of rubber tubular valve pocket is low, thus the lost of life of valve is caused.In addition, the assembling of this rubber tubular valve pocket also needs to be fixed by limited ring.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of seal valve gum cover for direct-acting type valve,
It can strengthen longitudinal bearing capacity of seal valve gum cover effectively; Can be convenient to again install; Also can guarantee the sealing to stem valve orifice; Simultaneously that the keying resistance drop of valve is extremely minimum; And can also maintained switch time resistance be tending towards constant; Enable valve rod smoothly to-and-fro motion.
The technological scheme that the present invention takes for realizing its object: a kind of seal valve gum cover for direct-acting type valve, comprises gum cover body, and described gum cover body is cone-shape, is lined with the netted interior muscle be made up of horizontal bar and longitudinal rib in it.
Described gum cover body adopts rubber material to make, and described netted interior muscle adopts terylene, nylon or rigid metal silk to make.
The horizontal bar of described netted interior muscle has stretchability, and the length of described longitudinal rib is a certain amount of.
Described horizontal bar is staggeredly arranged and forms grid between longitudinal rib, or the grid formed between longitudinal rib and horizontal bar assumes diamond in shape, circular.
Inside described gum cover body, upper and lower end periphery is provided with the bulge loop be connected as a single entity with it.
As shown from the above technical solution, in the face of seal valve gum cover of the present invention, lining one deck laterally can limitedly stretch, and the netted interior muscle that longitudinal (during valve opening and closing valve rod vibration-direction) can not stretch, increase the longitudinal pulling force of seal valve gum cover and improve longitudinal mechanical tensile forces intensity, the longitudinal direction significantly adding the seal valve gum cover in direct-acting type valve bears pressure, and simultaneously this transverse direction again can the seal valve gum cover of limited free-extension.The seal valve gum cover of cone-shape can reduce the annular gap face between bulge loop and valve rod, can ensure the corresponding sealing of stem valve orifice surrounded surface outer rim, can ensure again convenience when producing assembling.Range of working pressure of the present invention is very wide, and can work in zero-pressure, low pressure, high pressure ultrahigh pressure state even, and keying during valve switch is exerted pressure, resistance does not affect by pressure medium, constant all the time and little and constant.Wear and tear minimum, sealing but can be fabulous.Frequency of okperation is high, and the electromagnetism that can be applicable to be exceedingly fast opens and closes, and the impacting with high pressure of resistance to crest, and switch is smooth-going, light, flexible, working stability.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
Fig. 1 is the structural representation of seal valve gum cover of the present invention.
Fig. 2 is the using state figure of the present invention in direct-acting type valve.
Embodiment
As shown in Figure 1, seal valve gum cover 1 of the present invention is in cone-shape, namely one for heavy caliber, other end be small-bore tubaeform rubber sealing boot, be lined with netted interior muscle 11 in gum cover body, inside gum cover body, upper and lower end periphery is provided with the bulge loop 12 be connected as a single entity with it.Gum cover body adopts rubber material to make (as silicone rubber, fluorine rubber etc.), and netted interior muscle adopts terylene, nylon or rigid metal silk to make.The horizontal bar 112 of netted interior muscle has certain stretchability, and is staggeredly arranged between longitudinal rib 111.And the length of longitudinal rib (during valve opening and closing valve rod vibration-direction) is a certain amount of, can not stretch.When the present invention works in direct-acting type valve, only have constant varicose resistance, switch resistance is minimum, does not have elasticity overlap to cover friction, as shown in Figure 2.And existing cartridge seal cover not only has varicose resistance, and have certain elasticity overlap simultaneously and cover friction, thisly overlap institute by cartridge seal and form valve, especially under zero working pressure, it is especially remarkable that its elasticity overlap covers friction.Therefore feature of the present invention is: in direct acting valve, only produces varicose resistance, does not have elasticity overlap to cover friction, and valve working opens and closes drag uniform, steadily.So the present invention is in direct-acting type valve, it is exerted pressure and opens and closes the varicose resistance sum that resistance equals two seal valve gum covers.
As shown in Figure 2, be installed on valve two sections when the present invention uses, the bulge loop 12 of the less one end of seal valve gum cover 1 medium caliber embeds valve rod, and the bulge loop 12 of the larger one end of bore embeds valve interior wall.The seal valve gum cover of cone-shape can reduce the annular gap face between bulge loop and valve rod, form the transverse compression to varicose face, seal valve gum cover 1 gap, can effectively prevent direct acting valve from easily occurring poorly sealed Seepage when pressure medium goes to zero, itself and corresponding valve rod surrounded surface are closely covered, and then presents sealability well.The netted interior muscle 11 of liner, it laterally can limitedly stretch, and longitudinally (during valve opening and closing valve rod vibration-direction) can not stretch, increase its longitudinal pulling force and improve longitudinal mechanical tensile forces intensity, the longitudinal direction significantly adding the seal valve gum cover in direct-acting type valve bears pressure, simultaneously this transverse direction again can the seal valve gum cover of limited free-extension, can ensure the corresponding sealing of stem valve orifice surrounded surface outer rim, can ensure again convenience when producing assembling.
Material of the present invention both can be formed through mold pressing by fiber material or nylon, then impregnation, mold pressing and sulfuration.Or utilize existing material: such as by terylene elastic ribbon that is commercially available, that possess one fixed width, perpendicular to draw direction, be cut into the trapezoidal of 1/3rd loudspeaker cover girths, again three trapezoidal weave cloth forwards are sewed up side by side, and then form the tubaeform woven sleeve that large, other end is little, then gluing, mold pressing and sulfuration.Also can be made up by special process by resistant to bending rigidity wire and form, but make in any case, after these are tubaeform longitudinal lacing wire net forming, following condition must be met: landscape surface will guarantee to pull and stretch, longitudinal surface not only requires to draw motionless, more mustn't have flexible.Carry out impregnation or clay brushing afterwards, then put into pressing mold compression and shape through sulfuration again.
The direct-acting type valve be assembled into by the present invention, range of working pressure is very wide, and can work in zero-pressure, low pressure, high pressure ultrahigh pressure state even, and keying during valve switch is exerted pressure, resistance does not affect by pressure medium, constant all the time and little and constant.When the present invention works in direct acting valve, wear and tear minimum, sealing but can be fabulous.Frequency of okperation is high, and the electromagnetism that can be applicable to be exceedingly fast opens and closes, and the impacting with high pressure of resistance to crest, and switch is smooth-going, light, flexible, works highly stable.
Above are only embodiments of the invention, to one skilled in the art, the present invention has multiple change and change.Allly within invention thought of the present invention and principle, make any amendment, equivalently to replace, improve, all should be included within protection scope of the present invention.
Claims (3)
1. for a seal valve gum cover for direct-acting type valve, comprise gum cover body, it is characterized in that: described gum cover body is cone-shape, in it, be lined with the netted interior muscle be made up of horizontal bar and longitudinal rib; The horizontal bar of described netted interior muscle has stretchability, and the length of described longitudinal rib is a certain amount of; Described horizontal bar is staggeredly arranged and forms grid between longitudinal rib.
2. the seal valve gum cover for direct-acting type valve according to claim 1, is characterized in that: described gum cover body adopts rubber material to make, and described netted interior muscle adopts terylene, nylon or rigid metal silk to make.
3. the seal valve gum cover for direct-acting type valve according to claim 1 and 2, is characterized in that: inside described gum cover body, upper and lower end periphery is provided with the bulge loop be connected as a single entity with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154589.6A CN103216671B (en) | 2013-04-28 | 2013-04-28 | Seal valve gum cover for direct-acting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310154589.6A CN103216671B (en) | 2013-04-28 | 2013-04-28 | Seal valve gum cover for direct-acting valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216671A CN103216671A (en) | 2013-07-24 |
| CN103216671B true CN103216671B (en) | 2014-12-17 |
Family
ID=48814719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310154589.6A Active CN103216671B (en) | 2013-04-28 | 2013-04-28 | Seal valve gum cover for direct-acting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103216671B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2623268A1 (en) * | 1987-08-19 | 1989-05-19 | Dufrene Alain | Tap for drawing off liquids |
| CN2846849Y (en) * | 2005-08-24 | 2006-12-13 | 周拓韬 | Open conical sleeve |
| CN101055042A (en) * | 2007-04-30 | 2007-10-17 | 夏育红 | Water tap |
| CN101377255A (en) * | 2007-08-29 | 2009-03-04 | 喜开理株式会社 | Vacuum opening/closing valve |
| CN101696744A (en) * | 2009-11-04 | 2010-04-21 | 夏育红 | Safety pressure-limiting valve |
| CN101696736A (en) * | 2009-11-04 | 2010-04-21 | 夏育红 | Valve |
| CN201448449U (en) * | 2009-08-03 | 2010-05-05 | 广东万和新电气股份有限公司 | A self-priming magnetic valve for marsh gas appliances |
| CN101782156A (en) * | 2010-03-03 | 2010-07-21 | 夏育红 | Full water self-closing exhaust valve used for solar water heater |
| CN102102767A (en) * | 2009-12-17 | 2011-06-22 | 夏育红 | Directly operated type general electromagnetic valve |
-
2013
- 2013-04-28 CN CN201310154589.6A patent/CN103216671B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2623268A1 (en) * | 1987-08-19 | 1989-05-19 | Dufrene Alain | Tap for drawing off liquids |
| CN2846849Y (en) * | 2005-08-24 | 2006-12-13 | 周拓韬 | Open conical sleeve |
| CN101055042A (en) * | 2007-04-30 | 2007-10-17 | 夏育红 | Water tap |
| CN101377255A (en) * | 2007-08-29 | 2009-03-04 | 喜开理株式会社 | Vacuum opening/closing valve |
| CN201448449U (en) * | 2009-08-03 | 2010-05-05 | 广东万和新电气股份有限公司 | A self-priming magnetic valve for marsh gas appliances |
| CN101696744A (en) * | 2009-11-04 | 2010-04-21 | 夏育红 | Safety pressure-limiting valve |
| CN101696736A (en) * | 2009-11-04 | 2010-04-21 | 夏育红 | Valve |
| CN102102767A (en) * | 2009-12-17 | 2011-06-22 | 夏育红 | Directly operated type general electromagnetic valve |
| CN101782156A (en) * | 2010-03-03 | 2010-07-21 | 夏育红 | Full water self-closing exhaust valve used for solar water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103216671A (en) | 2013-07-24 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180612 Address after: 214537 96 Fei Yue Road, Xinqiao Industrial Park, Jingjiang, Taizhou, Jiangsu Patentee after: JIANGSU FEIYUE PUMP GROUP CO., LTD. Address before: 230041 Anhui Hefei Yaohai District East Street Zongyang South Road Hui dodo convenience store Patentee before: Xia Yuhong |